STP-301/451 Series Instruction Manual
Operation
Terminal Description
BRAKE
N.O OUT
(12)
(14)
Terminals for outputting the BRAKE state signal.
These terminals are closed when the STP pump is in brake.
However, when the rotational speed is less than 20,000rpm
during power failure backup operation, this signal is not
output.
N.
O
NO
RM
O
U
T
N.
C
C
O
M
(13)
(15)
(16)
Terminals for outputting the NORMAL OPERATION state
signal.
When the STP pump is in rated operation, the terminals
between (16)-(13) are closed, and the terminals between
(16)-(15) are opened.
ACC
N.O OUT
(17)
(18)
Terminals for outputting the ACCELERATION state signal.
These terminals are closed when the STP pump is in
acceleration.
REMOTE
N.O OUT
(19)
(20)
Terminals for outputting the STP pump REMOTE
SELECTION state signal.
When the MANUAL/REMOTE changeover switch on the
STP front panel is set to ON (remote side), these terminals
are closed (REMOTE operation).
However, when the rotational speed is less than 20,000rpm
during power failure backup operation, this signal is not
output.
(1) (3) (5) (7) (9) (11) (13) (15) (17) (19)
(2) (4) (6) (8) (10) (12) (14) (16) (18) (20)
TB1 Terminal Arrangement
